The 9215 is a remote transmit unit or RTU capable of sending a measured signal (such as a tank liquid level) to the Internet for viewing. The RTU is housed in an unusually small plastic case allowing it to fit in locations where other RTU cannot.


  • Monitoring Capacity: 1
  • Operating Temperature: -40°F to 140°F (does not include sensor specifications)
  • Operating Modes: normal and deep sleep
  • Power Source: Internal Lithium battery 2.6 Amp Hours
    • optional: external 8 to 14VDC with automatic switch off of internal Lithium batteries
  • Enclosure: Polycarbonate with UV stabilizer
  • Dimensions: 4.0 x 3.6 x 1.6 inches
  • Display Interface: Interfaces to ESI 9179A Display/ Controller
  • Sensor Input: Any 0-5 volt sensor

Downloadable Specifications pdf

Why Level Devil?